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jsp日期選取器__js

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<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<meta name="Author" content="Jiang Hongbin">

<title>日期選擇 - BY ziyue</title>

<script language="JavaScript" type="text/JavaScript">

// 日期選擇

var months = new Array("一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月");

var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

var days = new Array("日","一", "二", "三", "四", "五", "六");

var today;

document.writeln("<div id='Calendar' style='position:absolute; z-index:1; visibility: hidden; filter:/"progid:DXImageTransform.Microsoft.Shadow(direction=135,color=#999999,strength=3)/"'></div>");

function getDays(month, year)

{

//下面的這段代碼是判斷當前是否是閏年的

if (1 == month)

return ((0 == year % 4) && (0 != (year % 100))) || (0 == year % 400) ? 29 : 28;

else

return daysInMonth[month];

}

function getToday()

{

//得到今天的年,月,日

this.now = new Date();

this.year = this.now.getFullYear();

this.month = this.now.getMonth();

this.day = this.now.getDate();

}

function getStringDay(str)

{

//得到輸入框的年,月,日

var str=str.split("-")

this.now = new Date(parseFloat(str[0]),parseFloat(str[1])-1,parseFloat(str[2]));

this.year = this.now.getFullYear();

this.month = this.now.getMonth();

this.day = this.now.getDate();

}

function newCalendar() {

var parseYear = parseInt(document.all.Year.options[document.all.Year.selectedIndex].value);

var newCal = new Date(parseYear, document.all.Month.selectedIndex, 1);

var day = -1;

var startDay = newCal.getDay();

var daily = 0;

if ((today.year == newCal.getFullYear()) &&(today.month == newCal.getMonth()))

day = today.day;

var tableCal = document.all.calendar;

var intDaysInMonth =getDays(newCal.getMonth(), newCal.getFullYear());

for (var intWeek = 1; intWeek < tableCal.rows.length;intWeek++)

for (var intDay = 0;intDay < tableCal.rows[intWeek].cells.length;intDay++)

{

var cell = tableCal.rows[intWeek].cells[intDay];

if ((intDay == startDay) && (0 == daily))

daily = 1;

if(day==daily) //今天，調用今天的Class

{

cell.style.background='#6699CC';

cell.style.color='#FFFFFF';

//cell.style.fontWeight='bold';

}

else if(intDay==6) //周六

cell.style.color='green';

else if (intDay==0) //周日

cell.style.color='red';

if ((daily > 0) && (daily <= intDaysInMonth))

{

cell.innerText = daily;

daily++;

}

else

cell.innerText = "";

}

}

function GetDate(InputBox)

{

var sDate;

//這段代碼處理滑鼠點擊的情況

if (event.srcElement.tagName == "TD")

if (event.srcElement.innerText != "")

{

sDate = document.all.Year.value + "-" + document.all.Month.value + "-" + event.srcElement.innerText;

eval("document.all."+InputBox).value=sDate;

HiddenCalendar();

}

}

function HiddenCalendar()

{

//關閉選擇視窗

document.all.Calendar.style.visibility='hidden';

}

function ShowCalendar(InputBox)

{

var x,y,intLoop,intWeeks,intDays;

var DivContent;

var year,month,day;

var o=eval("document.all."+InputBox);

var thisyear; //真正的今年年份

thisyear=new getToday();

thisyear=thisyear.year;

today = o.value;

if(isDate(today))

today = new getStringDay(today);

else

today = new getToday();

//顯示的位置

x=o.offsetLeft;

y=o.offsetTop;

while(o=o.offsetParent)

{

x+=o.offsetLeft;

y+=o.offsetTop;

}

document.all.Calendar.style.left=x+2;

document.all.Calendar.style.top=y+20;

document.all.Calendar.style.visibility="visible";

//下面開始輸出日曆表格(border-color:#9DBAF7)

DivContent="<table border='0' cellspacing='0' style='border:1px solid #0066FF; background-color:#EDF2FC'>";

DivContent+="<tr>";

DivContent+="<td style='border-bottom:1px solid #0066FF; background-color:#C7D8FA'>";

//年

DivContent+="<select name='Year' id='Year' onChange='newCalendar()' style='font-family:Verdana; font-size:12px'>";

for (intLoop = thisyear - 35; intLoop < (thisyear + 2); intLoop++)

DivContent+="<option value= " + intLoop + " " + (today.year == intLoop ? "Selected" : "") + ">" + intLoop + "</option>";

DivContent+="</select>";

//月

DivContent+="<select name='Month' id='Month' onChange='newCalendar()' style='font-family:Verdana; font-size:12px'>";

for (intLoop = 0; intLoop < months.length; intLoop++)

DivContent+="<option value= " + (intLoop + 1) + " " + (today.month == intLoop ? "Selected" : "") + ">" + months[intLoop] + "</option>";

DivContent+="</select>";

DivContent+="</td>";

DivContent+="<td style='border-bottom:1px solid #0066FF; background-color:#C7D8FA; font-weight:bold; font-family:Wingdings 2,Wingdings,Webdings; font-size:16px; padding-top:2px; color:#4477FF; cursor:hand' align='center' title='關閉' onClick='javascript:HiddenCalendar()'>S</td>";

DivContent+="</tr>";

DivContent+="<tr><td align='center' colspan='2'>";

DivContent+="<table id='calendar' border='0' width='100%'>";

//星期

DivContent+="<tr>";

for (intLoop = 0; intLoop < days.length; intLoop++)

DivContent+="<td align='center' style='font-size:12px'>" + days[intLoop] + "</td>";

DivContent+="</tr>";

//天

for (intWeeks = 0; intWeeks < 6; intWeeks++)

{

DivContent+="<tr>";

for (intDays = 0; intDays < days.length; intDays++)

DivContent+="<td onClick='GetDate(/"" + InputBox + "/")' style='cursor:hand; border-right:1px solid #BBBBBB; border-bottom:1px solid #BBBBBB; color:#215DC6; font-family:Verdana; font-size:12px' align='center'></td>";

DivContent+="</tr>";

}

DivContent+="</table></td></tr></table>";

document.all.Calendar.innerHTML=DivContent;

newCalendar();

}

function isDate(dateStr)

{

var datePat = /^(/d{4})(/-)(/d{1,2})(/-)(/d{1,2})$/;

var matchArray = dateStr.match(datePat);

if (matchArray == null) return false;

var month = matchArray[3];

var day = matchArray[5];

var year = matchArray[1];

if (month < 1 || month > 12) return false;

if (day < 1 || day > 31) return false;

if ((month==4 || month==6 || month==9 || month==11) && day==31) return false;

if (month == 2)

{

var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));

if (day > 29 || (day==29 && !isleap)) return false;

}

return true;

}

</script>

<style type="text/css">

<!--

td,input {

font-family: Verdana, Arial, Helvetica, sans-serif;

font-size: 12px;

}

-->

</style>

</head>

<body>

<form name="form1" method="post" action="">

<table width="500" border="0" align="center" cellspacing="1" bgcolor="#CCCCCC">

<tr bgcolor="#FFFFFF">

<td align="right">您的生日：</td>

<td><input name="birthday" type="text" id="birthday" title="點擊選擇" onClick="javascript:ShowCalendar(this.id)" size="20">

<input type="button" name="Submit" value="選 擇" onClick="javascript:ShowCalendar('birthday')"></td>

</tr>

</table>

</form>

</body>

</html>

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